.personal_center {
    position: absolute;
    border: 0 solid brown;
    right: 0;
    width: 200px;
    height: 50px;
}
.head_div {
    position: absolute;
    height: 50px;
    line-height: 50px;
    width: 40px;
}
.my_info {
    position: relative;
    width: 160px;
    height: 50px;
    margin-left: 40px;
    line-height: 50px;
}
.el-dropdown-link {
    margin-left: 10px;
    height: 50px;
    line-height: 50px;
}
.username_div {
    cursor: pointer;
}